Your company developed a new weather forecasting application and deployed it in Google cloud. The application is deployed on autoscaled MIG across two zones, and the compute layer relies on a Cloud SQL database. The company launched a trial on a small group of employees and now wishes to expand this trial to a larger group, including unauthenticated public users. You have been asked to ensure the application response is within the SLA. What resilience testing strategy should you use to achieve this?